Method of making crepe paper



Sept. 23, 1924. 1,509,418

A. E. COFRIN METHOD OF MAKING CREPE PAPER Filed Oct. 20 1920 ing of the paper web to a Patented Sept. 23, 1924n UNITED STATES AUSTIN E. COFRIN, OF GREEN BAY, WISGONSI N.

METHOD OF MAKING CREPE IPAIQER.

Application filed October 20, 1920. Serial No. 418,221. a

To all whom it may concern:

Be it known that I, AUsTIN E. CoFRIN, a citizen of the United States, and resident of Green Bay, in the county of Brown and State of Wisconsin, have invented certain new and useful Improvements in Methods of Making Crepe Paper; and I do hereby declare that the following is a full, clear, and exact description thereof.

My invention relates to new and useful improvements in the methods of making crepe paper. 7

Heretofore, crepe paper has been made by a process which consisted of a series of disconnected steps or operations. For instance, the web of paper from the paper making machine after being dried is cut into different widths or into strips of any desired width and wound on rolls. These rolls are then taken to a storage room or the like and used as necessity demands, it obviously being necessary when suchuse occurs to unwind the rolls and feed the strips through a creping machine. In this latter machine the paper is moistened and crped, and thereafter is subsequently dried and wound upon other rolls.

This prevalent method of manufacturing crepe paper is not only expensive, but re quires a considerable amount of time on account of the unnecessary number of operations. I have discovered that not only a much better grade of crpepaper can be "manufactured, but the same can be made at a considerable reduction in cost and in a much shorter time by this simpler method. Therefore, it is the principal object of my invention to provide a process of crping paper which-will consist of a relatively few number of steps, all of which may be performed within a relatively short space of time.

A further object of my invention is to provide a process which will be continuous, that is to say the crping is accomplished immediately after the web of paper is passed from the paper making machine.

A further object of the invention is to provide a process of this character including as one of its operative steps, the moistenredetermined degree immediately prior to the cre ping operation.

To the accomplishment of the objects above stated and others that will become apparent as the description proceeds, the

invention comprises the steps hereinafter described and particularly pointed out in the appended claims. The annexed drawing illustrates by way of example an apparatus with which the method can be carried into effect.

The figure shown inthe drawin is a diagrammatical view of rollers an endless. bands adapted to carry steps of the improved method.

Referrin to the drawing in detail, the numeral 1 designates an endless band which is trained around suitable rollers 2, one of which I have shown in the drawing, which constitutes a conveying means for the paper web 3 which is to be crped. The paper 3 is delivered to the endless band from the paper making machine and then to the lower run of a felt'band 4; which passes around a plurality of rollers 5 which are so arranged that the paper will be conveyed in the apout the various propriate direction. In order to insure the engagement of the paper 3 with the felt band 4 I have provided a roller 6 adapted to coact with one of the lower rollers 5.

Arranged above and adjacent the continuous felt band 4 is a cylindrical drum 6 interiorly heated so as to'dry the paper 3 which passes around the exterior of the drum. The drum may be heated by any suitable 0r convenient means, and as a matter of practice steam is employed for such purpose. As the result of the heating the side of the paper web in engagement with the drum becomes smooth and is provided with a glazed finish.

When leaving the drum 6 the paper passes around a guide roller 7 to an endless band 8, trained around a pair of rollers 9,

.and is then conducted over a number of rollers 10, which are rotatably mounted within troughs 11, filled with water so that the paper web in contacting with the topmost portion of the rollers 10 receives the proper degree of wetting necessary to obtain the crimping of the paper, and in order to insure the correct degree 'of wetting which the paper receives I have arranged above one of the rollers 10 a .rolier 7 which maintains a certain pressure upon the paper." I

Arranged adjacent the last of the rollers 10 and adapted to receive the paper therefrom is a creping plate 12, which simultanea blunt ed e. F From this plate 12, the crimped and moistened paper is then conducted around a pluralit of heated rollers 13 to become thoroug 1y dried, there being a pluralityot endless bands 14 and 1 5, which are trained around rollers 16 and 17 respectively, and

A which are adapted to hold the paper in contact with the exterior of the heating rollers.

It will be apparent from the'foregoing description, that the,invention consists in the combination ofa series of steps, the

web of paper from the drying means of the ptaper making machine being run directly to t e crping machine in an uncut full width condition without the intervention ofany intermediate steps, after which and while i the full width web is passing through'the creping machine, it is 'moistened, then crped, and finally dried and wound on I suitable rolls. The drying and winding may, or may not, be carried out in the creping machine. Thus in this method of manu-- facturing crepe paper, the paper materialsareput through a continuous, unbroken series of'operations fromthe time the pulp is fed to the paper making machine to the final winding of the crped and dried web on to the roll. Obviously this invention re- 'duces the number of steps which have heretofore been considered necessary in the manufactu'rmg of crepe paper, and as a result, such paper canbe made quite inex enslvely an more quickly than hereto ore.

- predetermined degree.

consin.

One of the principal points to be considered in this connection is that the full width of the paper web as it comes from the paper making machine is fed in an uncut condition through the crping machine, and if there is any cutting done it is not carried out until after the paper has been crped and dried. The best results have been obtained and the best crepe. paper made by moistening the paper web after it comes from the paper making machine to a certain That is to say if the paper web is dry the best quality of crpe is obtained. I

Having thus fully described my invention, what I claim asnew, and desire to secure by Letters Patent is 1. The method of making and crping paperas a continuous process which comprises forming the paper stuff into a Web, drying the web, moistening the dried web as it passes from the drying apparatus and crping the thus uniformly moistened web before'again drying.

2. The method of making and creping paper as a continuous process which comprises forming the paper stuff into a Web, drying the web with application of heat, moistening the dried web while in a heated condition and crping the thus uniformly moistened web.

In testimony that I claim the foregoing I have hereunto set my hand at Green Bay, in the county of Brown and State of VVis- AUSTIN 001mm. 

